Rotary tool.



' -PATENTED JUNE 7, 1.904.

J. KONAR.

ROTARY TOOL.

APPLIOATIION rum) FEB. s. 1902.

2 SHEETS-SHEET 1.

N0 MODEL.

THE Mourns PCTERS m Puonmumo, wAsumowm :1 0,

No. 761,841. PATENTED JUNE 7, 1904.

J. KONAR.

ROTARY TOOL.

APPLIOATION'IYILED FEB. 3, 19oz. N0 MODEL. 2 SHEETS-SHEET 2.

I fizm rzi i Patented June 7, 1904.

PATENT OFFICE.

JOHN KONAR, or or'1IoAeo; 1 LINo1s.

ROTARY TOOL- SPECIFICATION forming part of Letters Patent No. 761,841, dated June '7, 1904.

Application filed February 3, 1902. Serial No. 92,358. (No model.) i

To all whom it may concern;

Be it known that I, J OHN KoNAR, a subject of the Emperor of Germany, (but having made application to become a citizen of the United States,) and a resident of the city of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Rotary Tools, of which the following is a specification.

This invention relates to improvements in a rotary tool of that class or type to be used for almost any kind of rotary work, and especially as a hand-drill, breast-drill, or postdrill, or as a jack for emery-wheels, &c., or as a lathe and the like; and-it consists in certain peculiarities of the construction, novel arrangement, and operation of the various parts thereof, as will be hereinafter more fully set forth, and specifically claimed.

The objects of my invention are to provide a compact rotary tool of the above-described character with varying speeds which shall .be simple, light, and inexpensive in construction, strong, durable, and effective in operation, self-feeding without special attachments or will automatically advance into the work by means having otherrprincipalpurpose, and that can be placed in various positions to the supporting-body by means of a stand or hand and breast piece.

Another object is to provide a stand or hand and breast piece to support the tool either at one end or at two points.

Other objects and advantages will be disclosed in the subjoined description and explanation. Y

In order to enable others skilled in the art to which my invention pertains to make and use the same, 1 will now proceed to describe it, referring to the accompanying drawings, in which Figure 1 is a view in elevation of a rotary tool embodying my invention, showing parts in position for the tool to be used mainly as a hand or breast drill and otherwise. Fig. 2 is a similar view showing parts arranged in another position or-for use as a post-drill, a lathe or jack for an emery-wheel, &c., with an emery-wheel thereon. Fig. 3 is a View in elevation, showing the parts arranged so as to support the tool at two points. Fig. 4 is an inner view of the pulley, showing the ratchet mechanism therein. Fig. 5 is a detached plan view in elevation of the pawl which engages the ratchet-wheel. Fig. 6 is a view, partly in section and partly in elevation, of a portion of the grip or stem. Fig. 7 is a view in elevation of another portion of the grip or stem. Fig, 8 is a longitudinal section, partly in ole--v vation, taken on line 8 8 of Fig. i lookingin the direction indicated by the arrows. Fig. 9 is a detached face view of the offset handwheel, and'Fig. 10 is a plan view of the supporting-plate.

Similar letters refer to like parts throughout the different views of the drawings.

A represents a shaft which is screw-threaded at one of its ends and is usually formed with transverse openings a and a near each of its ends for the purpose to be presently explained. Mounted on the unthreaded portion of this shaft is a quill B, which is screwthreaded at one of its ends and has in said end a socket b to clutch and operate a chuck B, which may be of the ordinary or any preferred construction.

The quill B carries on its inner end a ratchet-wheel B with which a pawl C, pivotally secured in the case-like pulley D, which is preferably made of two cup-like pieces or sections d and cl, secured together by means of screws d or otherwise. The section (Z of the pulley is mounted on the quill B, and the section d is provided with a hub (Z which may have an annular flange cl" to prevent the strap E, which is secured at one of its ends to said hub and is wound thereon, from running off at the end of the hub. As before stated, the pawl Cis pivotally secured within the pulley D and has a lateral and rearward extension 0, provided with a lateral pin or projection 0', to which isfsecured one end of a spring E, which spring encircles the shaft A and is secured at its other end theretoby any suitable means. Mounted on the quill B, near the section d of the pulley D, is an offset wheel F, which may be provided with a set-screw f to engage the quill when it is desired to [ix said wheel thereon. This hand-wheel is employed for the double purpose of being used as a bearing and a part of the second support for the tool when it is desired to support the same at two points, as is clearly shown in Fig. 3 of the drawings, or as a loose hand-wheel to hold and guide the tool when in operation as a breast or hand drill and when fixed to the quill by the screw f as a fly-wheel or as a fixed hand-wheel to hold the quill when adjusting the chuck B.

In order to provide the tool with a support which may be used for securing it in a suitable position to a work-bench, wall, post, or other device or so that it may be used as a hand and breast drill, I use a plate G, which is provided with a number of openings g, through which screws may be placed for securing it, and with other openings g, and g for the reception of screw-bolts for attaching the grip or stem of the tool thereto. This grip or stem comprises a piece H, which has a transverse screw-threaded socket 7t and a longitudinal screw-threaded socket it for the reception of the screw-threaded end of the shaft A, which shaft may be tightened in either of said sockets by means of a set-screw k in the clamp if on the outer end of the piece H, which piece is also provided in its end opposite said clamp with a screw-threaded opening to receive a screw-bolt to fasten it to the plate G or to the base grip-piece II, which is provided with an opening if to receive a screw-bolt for securing it to the plate as well as to the socketed grip-piece H or stem.

From the foregoing and by reference to the drawings it will be seen and clearly understood that by drawing on the strap E, which may be done by hand or by means of a pedal connected thereto or otherwise, the said strap will cause the pulley to rotate and carry with it the quill which carries the bit or other tool by means of the chuck B or other coupling or clutching means. In the driving rotation of the pulley the pawl G will engage the ratchet-wheel B on the quill and will thereby cause the quill to rotate, as is apparent, in which operation the spring IE will be contracted or tightened and will distance the pawl from the ratchet in the reverse motion of the pulley, when the above-named operation may be repeated.

In the feeding operation with each contraction the spring will tend to screw-drive the shaft. To permit this action, the clamp It is relieved to let the threaded end of the shaft screw freely into its socket. The tightened spring will cause only as much screw propulsion of the shaft as the slack cut in the work by the toolsay by a drill will allow and will repeat this action at the end of every stroke of the strap.

Extra feeding by hand can be done by means of a crank set on the threaded end of the shaft in the hole a. The crank put into the hole a" to which the quill has a corresponding opening, will grip at once the quill and the shaft and if left there during operation of the rotating tool will cause its screw propulsion at the rate of one screw-thread to each revolution of the tool. The same crank placed in the samehole/t through the quill and the shaft will also give lever-power to screw-drive the tool wholly assembled with the threaded end of the shaft ahead into the opening of the grip H or into an openingin a bench, wall, or post. For slow speed the strap is hitched to the ease of the pulley and for high speed to the hub of the pulley.

The case-pulley has an opening :r, eorrespending with an opening :1" in the ratchet. (See Fig. A pin or similar body put through both openings will couple the pulley with the ratchet, thus effecting a grip on the quill when adjusting the chuck and otherwise where the tool may be used without the handwheel 1*. Instead of threading the end of the shaft it may be flattened and provided with a handle in the well-known manner used on files.

By removing the screw-bolt from the opening in the plate (-r and detaching the pieees H and H of the grip or stem it is evident that by securing the piecell to the plate by means of a screw-bolt passed through the opening in the plate and the piece II by means of a bolt through the opening which bolt passes through the piece H and engages the handwheel F, the tool will be supported at two points, as is clearly shown in Fig. 3 of the drawings.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a rotary tool, a shaft adapted to engage a support, a quill mounted on the shaft, a ratchet-wheel on one end of the quill, provision to engage the tool proper on the other end,a case-like pulley surround ing the ratchetwheel and a portion of the shaft and quill and mounted with one end on the shaft and with the other on the quill, means to engage the pulley with the ratchet, a spring connected at one of its ends to the shaft and at its other end being in connection with the pulley, and means for turning the pulley, substantially as described.

2. In a rotary tool, a shaft adapted to en gage a support, a quill mounted on the shaft, a ratchet-wheel on one end of the quill, a hand wheel on the quill near its middle, provision to engage the tool proper on the other end of the quill, a case-like pulley surrounding the ratchet-wheel and a portion of the shaft and quill and mounted withone end on thesha l'tand with the other on the quill, means to engage the pulley with the ratchet, a spring connected at one of its ends to the shaft and at its other end being in connection with the pulley, and means for turning the pulley, substantially as described.

3. In a rotary tool, a support with openings IIO at different angles, a shaft to fit in said open ings, a quill mounted on the shaft, a ratchetwheel on one end of the quill, provision to engage the tool proper on the other end of the quill, a pulley near the middle of the shaft, means to engage the pulley with its ratchet, a spring connected at one of its ends to the shaft and at its other being-in connection with the pulley, and means for turning the pulley, substantially as described.

4. In a rotary tool, a threaded support with openings at different angles, a shaft threaded on one of its ends for a turning fit in said openings, a quill on the shaft and having provision to engage the tool proper at one of its ends, a ratchet on the other end of the quill,

' a pulley near the middle of the shaft, means to engage the pulley with the ratchet, a spring connected at one end to the shaft and at its other end to the pulley, and means for turning the pulley, substantially as described.

5. In a rotary tool, a shaft threaded on one of its ends, a threaded support with aturning fit for the shaft, a quill on the shaft and having provision to engage the tool proper at one of its ends, a ratchet on the other end of the quill, a pulley near the middle of the'shaft and means to engage it with the ratchet, a spring connected at one end to the shaft and at its other end to the pulley, and means for turning the pulley, substantially as described.

6. In a rotary tool, ashaft threaded on one of its ends, a threaded support with a turning fit for the shaft, a quill on the shaft and having provision to engage the tool proper at one of its ends, a hand-wheel on the quill near its middle, a ratchet on the other end of the quill, a pulley near the middle of the shaft and means to engage it with the ratchet, a spring connected at one end to the shaft and at its other end to the pulley, and means for turning the pulley, substantially as described.

7. In a rotary tool, a shaft threaded mom of its ends to engage a support, a quill mounted on the shaft, a ratchet on one end of the quill, provision to engage the tool proper at the other end of the quill, a pulley near the middle of the shaft and means to engage it with the ratchet, means to apply lever-power on the shaft through the quill, a spring connected at one of its ends to the shaft and at its other end to the pulley and means for turning the pulley, substantially as described.

8. In a rotary tool, a shaft adapted to engage a support, a quill on the shaft and having provision to engage the tool proper near one of its ends, a ratchet on the other end of the quill, a pulley near the middle of the shaft, on the pulley pivotally secured a pawl to engage the ratchet, at the rear end of the pawl means to engage it with one end of a spring said spring connected at its other end to the shaft, and means to turn the pulley, substantially as described.

9. In a rotary tool, a shaft threaded on one of its ends, a threaded support with a turning fit for the shaft, a quill on the shaft and having provision to engage the tool proper at one of its ends, a ratchet onthe other'end of the quill, means to apply lever-power on the shaft through the quill, a pulley near the middle of the shaft and means to engage it with the ratchet, a spring connected at one end to the anism mounted on the shaft, substantially as described.

12. In a rotary tool, the combination with a base and a column thereon, of a stem or grip on the column and provided with openings at different angles, a shaft to fit into said openings, a rotary mechanism on the shaft, provision to post the stem at another part on the base and to support the tool at a second point on the column, substantially as described.

13. In a rotary tool, a shaft threaded on one of its ends, a threaded support with a turning fit for the shaft, a quill on the shaft and having provision to engage the tool proper at one of its ends, a support to bear the quill, a ratchet on the other end of the quill, a pulley near the middle of the shaft and means to engage it with the ratchet, a spring connected at one end to the shaft and at its other end to the pulley, and means for turning the pulley, substantially as described.

14:. In a rotary tool, a shaft adapted to engage a support, a quill mounted on the shaft, a ratchet-wheel on one end of the quill, provision to engage the tool proper on the other end of the quill, a pulley near the middle of the shaft, on the pulley a pawl pivotally secured and having a rearward extension with a side projection, a spring connected at one of its ends to the shaft and atits other end to the side projection of the pawl, and means for turning the pulley, substantially as described.

15. In a rotary tool, a shaft threaded at one of its ends, a threaded support with aturning fit for the shaft and means to adjust said fit, a quill on the shaft and having provision to engage the tool proper at one of its ends, a ratchet on the other end of the quill, a pulley near the middle of the shaft and means to en-' gage it with the ratchet, a spring connected at one end to the shaft and at its other end to the pulley, and means for turning the pulley, substantially as described.

16. In a rotary tool, a shaft adapted to engage a support, a quill on the shaft and having provision to engage the tool proper near one of its ends, a ratchet on the other end of the quill, a cone-pulley near the middle of the shaft surrounding the ratchet and a portion of the shaft and quill, said pulley surrounding means to engage itself With the ratchet, said pulley surrounding also a spring connected at one end to the shaft and at its other end to the conepulley, means to impart motion through either end of the cone-pulley, substantially as described.

JOI IN K ONAR.

\Vitnesses:

A. (JiUS'IAFSON, Guns. 0. Tulmiim. 

